From: Ben Harris <bjh21@bjh21.me.uk>
Date: Mon, 16 Dec 2024 21:49:16 +0000 (+0000)
Subject: Range-check argument to --bdfgen
X-Git-Tag: bedstead-3.251~68
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~bjharris/git?a=commitdiff_plain;h=d9380d5835f15e4cad53f0ac675e04dde9dbc8c2;p=bedstead.git

Range-check argument to --bdfgen
---

diff --git a/bedstead.c b/bedstead.c
index 200d69f..cc4fb64 100644
--- a/bedstead.c
+++ b/bedstead.c
@@ -2977,6 +2977,11 @@ main(int argc, char **argv)
 			fprintf(stderr, "--bdfgen needs a numeric size\n");
 			return EXIT_FAILURE;
 		}
+		if (u > INT_MAX) {
+			fprintf(stderr, "--bdfgen size can be at most %d\n",
+				INT_MAX);
+			return EXIT_FAILURE;
+		}
 		bdf_gen(u);
 		return EXIT_SUCCESS;
 	}